pertinacious

Stiff is a synonym of pertinacious.

As adjectives the difference between stiff and pertinacious

is that stiff is of an object, rigid, hard to bend, inflexible while pertinacious is holding tenaciously to an opinion or purpose.

As a noun stiff

is an average person, usually male, of no particular distinction, skill, or education, often a working stiff''''' or ''lucky '''stiff .

As a verb stiff

is to fail to pay that which one owes (implicitly or explicitly) to another, especially by departing hastily.

As adjectives the difference between sedulous and pertinacious

is that sedulous is diligent in application or pursuit; constant, steady, and persevering in business or in endeavors to effect an object; steadily industrious; assiduous while pertinacious is holding tenaciously to an opinion or purpose.

As an adjective pertinacious

is holding tenaciously to an opinion or purpose.

As a verb resilient is

.

As adjectives the difference between pertinacious and yielding

is that pertinacious is holding tenaciously to an opinion or purpose while yielding is docile, or inclined to give way to pressure.

As a verb yielding is

.

As a noun yielding is

a concession.

As adjectives the difference between pertinacious and uninvolved

is that pertinacious is holding tenaciously to an opinion or purpose while uninvolved is not involved.

As adjectives the difference between argumentative and pertinacious

is that argumentative is prone to argue or dispute while pertinacious is holding tenaciously to an opinion or purpose.

As adjectives the difference between arrogant and pertinacious

is that arrogant is having excessive pride in oneself, often with contempt for others while pertinacious is holding tenaciously to an opinion or purpose.

Strong is a related term of pertinacious.

As a proper noun strong

is .

As an adjective pertinacious is

holding tenaciously to an opinion or purpose.

As adjectives the difference between immovable and pertinacious

is that immovable is incapable of being physically moved; fixed while pertinacious is holding tenaciously to an opinion or purpose.

As a noun immovable

is that which can not be moved; something which is immovable.

As adjectives the difference between pertinacious and unyielding

is that pertinacious is holding tenaciously to an opinion or purpose while unyielding is not giving in; not bending; stubborn.